North of 60 Mining News - The mining newspaper for Alaska and Canada's North

Pebble Partnership copper gold molybdenum mine project Alaska Northern Dynasty NAK NDM

By Rose Ragsdale
For Mining News 

Greens Creek touts strong output, longevity

Mine's geologists, engineers adopt new technologies to improve efficiency of underground operation, offset declining ore grades

 

Last updated 11/25/2007 at Noon



Though owners of the Greens Creek Mine on Admiralty Island 18 miles south of Juneau say the underground operation ore grades have begun declining after some 15 years of production, they estimate the mine will produce commercial quantities of gold, silver, lead and zinc for at least another decade.

"We have 7.6 million tons of reserves left … and it gives us 10 more years of production," said...



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